[INFO] fetching crate sandcastle 0.0.1...
[INFO] testing sandcastle-0.0.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate sandcastle 0.0.1 into /workspace/builds/worker-96/source
[INFO] validating manifest of crates.io crate sandcastle 0.0.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sandcastle 0.0.1
[INFO] finished tweaking crates.io crate sandcastle 0.0.1
[INFO] tweaked toml for crates.io crate sandcastle 0.0.1 written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded euclid v0.17.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3428c3830e9d68a9e18372bdae5f128d5d04fd47b511183e5dd4e6b077ef7459
[INFO] running `Command { std: "docker" "start" "-a" "3428c3830e9d68a9e18372bdae5f128d5d04fd47b511183e5dd4e6b077ef7459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3428c3830e9d68a9e18372bdae5f128d5d04fd47b511183e5dd4e6b077ef7459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3428c3830e9d68a9e18372bdae5f128d5d04fd47b511183e5dd4e6b077ef7459", kill_on_drop: false }`
[INFO] [stdout] 3428c3830e9d68a9e18372bdae5f128d5d04fd47b511183e5dd4e6b077ef7459
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d7a57cf6dc8afbd95fcd2850284478dfb70f5a96c66a4e8c50b3b44deef09ab
[INFO] running `Command { std: "docker" "start" "-a" "5d7a57cf6dc8afbd95fcd2850284478dfb70f5a96c66a4e8c50b3b44deef09ab", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling inflate v0.3.4
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling euclid v0.17.3
[INFO] [stderr]    Compiling gif v0.9.2
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling image v0.18.0
[INFO] [stderr]    Compiling sandcastle v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/renderer.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn render(node: Box<RenderNode>) -> RenderResult<()>;
[INFO] [stdout]   |                         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 -     fn render(node: Box<RenderNode>) -> RenderResult<()>;
[INFO] [stdout] 6 +     fn render(node: Box<dyn RenderNode>) -> RenderResult<()>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/render_node.rs:3:36
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn parent(&self) -> Option<Box<RenderNode>>;
[INFO] [stdout]   |                                    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 3 -     fn parent(&self) -> Option<Box<RenderNode>>;
[INFO] [stdout] 3 +     fn parent(&self) -> Option<Box<dyn RenderNode>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/render_node.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 -     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stdout] 4 +     fn children(&self) -> dyn Iterator<Item=Box<RenderNode>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/render_node.rs:4:45
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stdout]   |                                             ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 -     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stdout] 4 +     fn children(&self) -> Iterator<Item=Box<dyn RenderNode>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/transform.rs:20:29
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn child(&self) -> &RenderNode {
[INFO] [stdout]    |                             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 -     pub fn child(&self) -> &RenderNode {
[INFO] [stdout] 20 +     pub fn child(&self) -> &dyn RenderNode {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `buffer`
[INFO] [stdout]  --> src/nodes/image.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     buffer: ImageBuffer<P, C>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Image` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/nodes/image.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/nodes/image.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn new(buffer: ImageBuffer<P, C>) -> Image<P, C> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `buffer`
[INFO] [stdout]   --> src/nodes/image.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn buffer(&self) -> &ImageBuffer<P, C> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Mask`
[INFO] [stdout]  --> src/nodes/mask.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Mask {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `child`
[INFO] [stdout]  --> src/nodes/transform.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     child: N, 
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Transform` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/nodes/transform.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `transform`
[INFO] [stdout]  --> src/nodes/transform.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     transform: Transform3D<f64>
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Transform` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/nodes/transform.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/nodes/transform.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(child: N, transform: Transform3D<f64>) -> Transform<N> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `child`
[INFO] [stdout]   --> src/nodes/transform.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn child(&self) -> &RenderNode {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `transform`
[INFO] [stdout]   --> src/nodes/transform.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn transform(&self) -> &Transform3D<f64> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Shadow`
[INFO] [stdout]  --> src/nodes/shadow.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Shadow {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Gradient`
[INFO] [stdout]  --> src/nodes/gradient.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Gradient {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.74s
[INFO] running `Command { std: "docker" "inspect" "5d7a57cf6dc8afbd95fcd2850284478dfb70f5a96c66a4e8c50b3b44deef09ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d7a57cf6dc8afbd95fcd2850284478dfb70f5a96c66a4e8c50b3b44deef09ab", kill_on_drop: false }`
[INFO] [stdout] 5d7a57cf6dc8afbd95fcd2850284478dfb70f5a96c66a4e8c50b3b44deef09ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6a4dbf95726c54109467fd79fbf063fc1792bbf75bb47645b3220f91ebeaa56
[INFO] running `Command { std: "docker" "start" "-a" "a6a4dbf95726c54109467fd79fbf063fc1792bbf75bb47645b3220f91ebeaa56", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/renderer.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn render(node: Box<RenderNode>) -> RenderResult<()>;
[INFO] [stdout]   |                         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 -     fn render(node: Box<RenderNode>) -> RenderResult<()>;
[INFO] [stdout] 6 +     fn render(node: Box<dyn RenderNode>) -> RenderResult<()>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/render_node.rs:3:36
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn parent(&self) -> Option<Box<RenderNode>>;
[INFO] [stdout]   |                                    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 3 -     fn parent(&self) -> Option<Box<RenderNode>>;
[INFO] [stdout] 3 +     fn parent(&self) -> Option<Box<dyn RenderNode>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/render_node.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 -     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stdout] 4 +     fn children(&self) -> dyn Iterator<Item=Box<RenderNode>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/render_node.rs:4:45
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stdout]   |                                             ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 -     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stdout] 4 +     fn children(&self) -> Iterator<Item=Box<dyn RenderNode>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/transform.rs:20:29
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn child(&self) -> &RenderNode {
[INFO] [stdout]    |                             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 -     pub fn child(&self) -> &RenderNode {
[INFO] [stdout] 20 +     pub fn child(&self) -> &dyn RenderNode {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `buffer`
[INFO] [stdout]  --> src/nodes/image.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     buffer: ImageBuffer<P, C>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Image` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/nodes/image.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/nodes/image.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn new(buffer: ImageBuffer<P, C>) -> Image<P, C> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `buffer`
[INFO] [stdout]   --> src/nodes/image.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn buffer(&self) -> &ImageBuffer<P, C> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Mask`
[INFO] [stdout]  --> src/nodes/mask.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Mask {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `child`
[INFO] [stdout]  --> src/nodes/transform.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     child: N, 
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Transform` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/nodes/transform.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `transform`
[INFO] [stdout]  --> src/nodes/transform.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     transform: Transform3D<f64>
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Transform` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/nodes/transform.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/nodes/transform.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(child: N, transform: Transform3D<f64>) -> Transform<N> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `child`
[INFO] [stdout]   --> src/nodes/transform.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn child(&self) -> &RenderNode {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `transform`
[INFO] [stdout]   --> src/nodes/transform.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn transform(&self) -> &Transform3D<f64> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Shadow`
[INFO] [stdout]  --> src/nodes/shadow.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Shadow {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Gradient`
[INFO] [stdout]  --> src/nodes/gradient.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Gradient {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sandcastle v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/renderer.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn render(node: Box<RenderNode>) -> RenderResult<()>;
[INFO] [stdout]   |                         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 -     fn render(node: Box<RenderNode>) -> RenderResult<()>;
[INFO] [stdout] 6 +     fn render(node: Box<dyn RenderNode>) -> RenderResult<()>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/render_node.rs:3:36
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn parent(&self) -> Option<Box<RenderNode>>;
[INFO] [stdout]   |                                    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 3 -     fn parent(&self) -> Option<Box<RenderNode>>;
[INFO] [stdout] 3 +     fn parent(&self) -> Option<Box<dyn RenderNode>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/render_node.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 -     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stdout] 4 +     fn children(&self) -> dyn Iterator<Item=Box<RenderNode>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/render_node.rs:4:45
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stdout]   |                                             ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 -     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stdout] 4 +     fn children(&self) -> Iterator<Item=Box<dyn RenderNode>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/transform.rs:20:29
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn child(&self) -> &RenderNode {
[INFO] [stdout]    |                             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 -     pub fn child(&self) -> &RenderNode {
[INFO] [stdout] 20 +     pub fn child(&self) -> &dyn RenderNode {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `buffer`
[INFO] [stdout]  --> src/nodes/image.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     buffer: ImageBuffer<P, C>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Image` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/nodes/image.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/nodes/image.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn new(buffer: ImageBuffer<P, C>) -> Image<P, C> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `buffer`
[INFO] [stdout]   --> src/nodes/image.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn buffer(&self) -> &ImageBuffer<P, C> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Mask`
[INFO] [stdout]  --> src/nodes/mask.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Mask {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `child`
[INFO] [stdout]  --> src/nodes/transform.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     child: N, 
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Transform` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/nodes/transform.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `transform`
[INFO] [stdout]  --> src/nodes/transform.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     transform: Transform3D<f64>
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Transform` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/nodes/transform.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/nodes/transform.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(child: N, transform: Transform3D<f64>) -> Transform<N> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `child`
[INFO] [stdout]   --> src/nodes/transform.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn child(&self) -> &RenderNode {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `transform`
[INFO] [stdout]   --> src/nodes/transform.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn transform(&self) -> &Transform3D<f64> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Shadow`
[INFO] [stdout]  --> src/nodes/shadow.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Shadow {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Gradient`
[INFO] [stdout]  --> src/nodes/gradient.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Gradient {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.63s
[INFO] running `Command { std: "docker" "inspect" "a6a4dbf95726c54109467fd79fbf063fc1792bbf75bb47645b3220f91ebeaa56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6a4dbf95726c54109467fd79fbf063fc1792bbf75bb47645b3220f91ebeaa56", kill_on_drop: false }`
[INFO] [stdout] a6a4dbf95726c54109467fd79fbf063fc1792bbf75bb47645b3220f91ebeaa56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1714365949ffe524fe36dbc32d331a1336b31a27384275dfe4306f45bd7328bb
[INFO] running `Command { std: "docker" "start" "-a" "1714365949ffe524fe36dbc32d331a1336b31a27384275dfe4306f45bd7328bb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/renderer.rs:6:25
[INFO] [stderr]   |
[INFO] [stderr] 6 |     fn render(node: Box<RenderNode>) -> RenderResult<()>;
[INFO] [stderr]   |                         ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 6 -     fn render(node: Box<RenderNode>) -> RenderResult<()>;
[INFO] [stderr] 6 +     fn render(node: Box<dyn RenderNode>) -> RenderResult<()>;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/render_node.rs:3:36
[INFO] [stderr]   |
[INFO] [stderr] 3 |     fn parent(&self) -> Option<Box<RenderNode>>;
[INFO] [stderr]   |                                    ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 3 -     fn parent(&self) -> Option<Box<RenderNode>>;
[INFO] [stderr] 3 +     fn parent(&self) -> Option<Box<dyn RenderNode>>;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/render_node.rs:4:27
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 4 -     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stderr] 4 +     fn children(&self) -> dyn Iterator<Item=Box<RenderNode>>;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/render_node.rs:4:45
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stderr]   |                                             ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 4 -     fn children(&self) -> Iterator<Item=Box<RenderNode>>;
[INFO] [stderr] 4 +     fn children(&self) -> Iterator<Item=Box<dyn RenderNode>>;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/transform.rs:20:29
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn child(&self) -> &RenderNode {
[INFO] [stderr]    |                             ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 20 -     pub fn child(&self) -> &RenderNode {
[INFO] [stderr] 20 +     pub fn child(&self) -> &dyn RenderNode {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `buffer`
[INFO] [stderr]  --> src/nodes/image.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     buffer: ImageBuffer<P, C>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Image` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/nodes/image.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Debug)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/nodes/image.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn new(buffer: ImageBuffer<P, C>) -> Image<P, C> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `buffer`
[INFO] [stderr]   --> src/nodes/image.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn buffer(&self) -> &ImageBuffer<P, C> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Mask`
[INFO] [stderr]  --> src/nodes/mask.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Mask {
[INFO] [stderr]   |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `child`
[INFO] [stderr]  --> src/nodes/transform.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     child: N, 
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `Transform` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/nodes/transform.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[derive(Debug)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `transform`
[INFO] [stderr]  --> src/nodes/transform.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     transform: Transform3D<f64>
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `Transform` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/nodes/transform.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[derive(Debug)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/nodes/transform.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(child: N, transform: Transform3D<f64>) -> Transform<N> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `child`
[INFO] [stderr]   --> src/nodes/transform.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn child(&self) -> &RenderNode {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `transform`
[INFO] [stderr]   --> src/nodes/transform.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn transform(&self) -> &Transform3D<f64> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Shadow`
[INFO] [stderr]  --> src/nodes/shadow.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Shadow {
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Gradient`
[INFO] [stderr]  --> src/nodes/gradient.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct Gradient {
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `sandcastle` (lib) generated 16 warnings
[INFO] [stderr] warning: `sandcastle` (lib test) generated 16 warnings (16 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sandcastle-5f0f626601341301)
[INFO] [stderr]    Doc-tests sandcastle
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1714365949ffe524fe36dbc32d331a1336b31a27384275dfe4306f45bd7328bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1714365949ffe524fe36dbc32d331a1336b31a27384275dfe4306f45bd7328bb", kill_on_drop: false }`
[INFO] [stdout] 1714365949ffe524fe36dbc32d331a1336b31a27384275dfe4306f45bd7328bb